Active Time

　　10 min

　　Total Time

　　5 3/4 hr (includes chilling)

　　Although uva means "grape" in Italian, Concords are native to North America. A velvety sorbet brings out their inky, foxy intensity. It will, in fact, swing you right into autumn.

　　

Ingredients

Makes about 1 quart

　　2 pounds Concord grapes (about 2 quarts), stemmed, divided

　　3/4 cup superfine granulated sugar

　　Equipment: an ice cream maker

　　

Step 1

Purée half of grapes in a blender until smooth, then force through a fine-mesh sieve into a bowl, discarding solids. Repeat with remaining grapes to yield 3 cups purée. Whisk in sugar until dissolved. Chill until very cold, 3 to 6 hours.

　　

Step 2

Freeze in ice cream maker, then transfer to an airtight container and put in freezer to firm up, at least 2 hours.

　　Cooks' note:

　　Sorbet keeps 1 week.